ADRIANSEN, Inge. Danish and the German National Systems. Grundtvig-Studier, [S. l.], v. 44, n. 1, p. 61–90, 1993. DOI: 10.7146/grs.v44i1.16100. Disponível em: https://tidsskrift.dk/grs/article/view/16100. Acesso em: 6 dec. 2025.